diff --git a/src/NetscriptFunctions/Singularity.ts b/src/NetscriptFunctions/Singularity.ts
index 7ac5483cc..3b6eb4ba3 100644
--- a/src/NetscriptFunctions/Singularity.ts
+++ b/src/NetscriptFunctions/Singularity.ts
@@ -12,7 +12,7 @@ import { RunningScript } from "../Script/RunningScript";
 import { calculateAchievements } from "../Achievements/Achievements";
 
 import {
-  AugmentationStats,
+  Multipliers,
   CrimeStats,
   Singularity as ISingularity,
   SourceFileLvl,
@@ -168,7 +168,7 @@ export function NetscriptSingularity(): InternalAPI<ISingularity> {
         return aug.getCost().repCost;
       },
     getAugmentationStats: (ctx: NetscriptContext) =>
-      function (_augName: unknown): AugmentationStats {
+      function (_augName: unknown): Multipliers {
         helpers.checkSingularityAccess(ctx);
         const augName = helpers.string(ctx, "augName", _augName);
         const aug = getAugmentation(ctx, augName);
diff --git a/src/PersonObjects/Person.ts b/src/PersonObjects/Person.ts
index 787c57cb1..d969b0470 100644
--- a/src/PersonObjects/Person.ts
+++ b/src/PersonObjects/Person.ts
@@ -50,6 +50,7 @@ export abstract class Person {
   regenerateHp = personMethods.regenerateHp;
   queryStatFromString = personMethods.queryStatFromString;
   updateSkillLevels = personMethods.updateSkillLevels;
+  hasAugmentation = personMethods.hasAugmentation;
   calculateSkill = calculateSkill; //Class version is equal to imported version
 
   /** Reset all multipliers to 1 */
diff --git a/src/PersonObjects/Sleeve/Sleeve.ts b/src/PersonObjects/Sleeve/Sleeve.ts
index 96a078ba2..cb820d408 100644
--- a/src/PersonObjects/Sleeve/Sleeve.ts
+++ b/src/PersonObjects/Sleeve/Sleeve.ts
@@ -280,10 +280,6 @@ export class Sleeve extends Person {
     return true;
   }
 
-  hasAugmentation(aug: string): boolean {
-    return this.augmentations.some((a) => a.name === aug);
-  }
-
   tryBuyAugmentation(aug: Augmentation): boolean {
     if (!Player.canAfford(aug.baseCost)) {
       return false;